B. Meysi Afrilia F, I. O. Yosephine, and Giyanto, “Contribution Biopellets as Energy New Renewable from Stalks, Bunches, Waste, Fresh Fruit Bunches, and Shells Coconut (Cocos nucifera)”, JUATIKA, vol. 8, no. 2, pp. 421 -, May 2026.